Filebeats not sendind any logs (Already enable)

My config looks like

filebeat.prospectors:
- type: log
  enabled: true
  paths:
    - /opt/app/logs/info.log
output.file:
  path: "/tmp/filebeat"
  filename: filebeat
logging.level: debug
logging.to_files: true
logging.files:
  path: /var/log/filebeat/dbops-log-collector
  name: dbops-log-collector.log
  keepfiles: 5
  permissions: 0644

the filebeat log is

2019-06-05T14:48:17.259+0700	INFO	[monitoring]	log/log.go:124	Non-zero metrics in the last 30s	{"monitoring": {"metrics": {"beat":{"cpu":{"system":{"ticks":60,"time":63},"total":{"ticks":140,"time":143,"value":140},"user":{"ticks":80,"time":80}},"info":{"ephemeral_id":"10462772-07c9-482e-8d19-a281af1001ff","uptime":{"ms":840011}},"memstats":{"gc_next":4194304,"memory_alloc":1291312,"memory_total":8015744}},"filebeat":{"harvester":{"open_files":0,"running":0}},"libbeat":{"config":{"module":{"running":0}},"pipeline":{"clients":1,"events":{"active":0}}},"registrar":{"states":{"current":0}},"system":{"load":{"1":17.04,"15":17.12,"5":17.09,"norm":{"1":4.26,"15":4.28,"5":4.2725}}}}}}

I can't figure out what's the mistake here.

Are you sure /opt/app/logs/info.log exists? Filebeat does not report if it cannot find a file, but waits for it to show up. Could you please share your debug logs?